一键安装docker docker-compose

cat docker_install.sh
#!/bin/bash
set -e

#uninstall docker if exist
sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine
if [ `rpm -qa|grep docker|wc -l` -eq 0 ] ;
then
echo "############################"
echo "No Docker Version Installed!"
echo "############################"
else
rpm -e --nodeps $(rpm -qa|grep docker)
echo "#######################"
echo "Old Version Uninstalled"
echo "#######################"
fi
                                   
#install requirements
sudo yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2

#setup repo
sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

#list docker versions
yum list docker-ce --showduplicates | sort -r| grep 'el7'|awk {'print $2'}|grep '^3'|awk -F [:-] {'print $2'}
verrepo=`yum list docker-ce --showduplicates | sort -r| grep 'el7'|awk {'print $2'}|grep '^3'|awk -F [:-] {'print $2'}`
#read a version from keyboard
echo "##########################################################"
echo "select a version from above and type it down，like 19.03.5"
echo "##########################################################"
while true
do
read -p "Input a Version:" ver
if [ ${#ver} = 7 ] ;
then
 if [[ $verrepo =~ $ver ]];
  then 
  sudo yum install -y docker-ce-$ver docker-ce-cli-$ver containerd.io
  break
 else
  echo "###############################"
  echo "input error, input like 19.03.5"
  echo "###############################"
 fi
else
echo "###############################"
echo "input error, input like 19.03.5"
echo "###############################"
fi
done

#start docker service
echo "###############################"
echo "Starting Docker Service"
echo "###############################"
sudo systemctl start docker
ps -ef|grep docker|grep -v grep
echo "------------------------------------------------------------"
echo "------------------------------------------------------------"
docker version
echo "------------------------------------------------------------"
echo "------------------------------------------------------------"

if [ `ps -ef|grep docker |grep -v grep|wc -l`> 0 ] ;
then
echo "#######################"
echo "Docker Install Success!"
echo "#######################"
else
echo "######################"
echo "Docker Install Failed!"
echo "######################"
fi

cat docer-compose_install.sh
#!/bin/bash
set -e

# test if docker-compose exits
num=$(command -v docker-compose | wc -l)
echo $num
if [[ $num = 1 ]]; 
then 
 echo "###########################################"
 echo "docker-compose already exits, see following"
 echo "###########################################"
 docker-compose version
 echo "#########################################"
 echo "wanna install latest version? type y or n"
 echo "#########################################"
 read -p "input your selection:" choose
 case $choose in 
 "n")
   echo "##########"
   echo "exiting..."
   echo "##########"
   exit
   ;;
 "y")
   rm -f $(which docker-compose)
   ver=$(curl -X GET https://api.github.com/repos/docker/compose/tags |grep "name"|grep -v docs|grep -v rc|awk -F[\"] {'print $4'}|sort -rV|head -n 1)
   echo $ver
   sudo curl -L "https://github.com/docker/compose/releases/download/$ver/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
   chmod +x /usr/local/bin/docker-compose
   ;;
 esac
else
   echo "#########################" 
   echo "Installing docker-compose"
   echo "#########################" 
   ver=$(curl -X GET https://api.github.com/repos/docker/compose/tags |grep "name"|grep -v docs|grep -v rc|awk -F[\"] {'print $4'}|sort -rV|head -n 1)
   echo $ver
   sudo curl -L "https://github.com/docker/compose/releases/download/$ver/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
   chmod +x /usr/local/bin/docker-compose 
fi
echo "######################" 
echo "docker-compose version"
echo "######################" 
docker-compose version

echo "################" 
echo "Install Success!"
echo "################"